Insulated Bag w/ Hot Cold Pack Thermal Food Storage & Carry Bag (Jumbo FLAT Bag) (20x20x1) Insulated Bags & Hot Cold Pack wil keep items hot or cold for up to TWO hours at a time. 100% recyclable, food safe, and reusable. All printing done with safe, non-toxic, water-based ink. Light weight, waterproof, easily washable and sturdy. Thermal Bags holds up to 30 lbs Great for any activity - grocery shopping, travel, the beach, fishing, camping, picnics, lunches ... Folds completely flat - easy to store. Perfect Hot Cold Insulated Bag